DBALO (ETR) Register - UG1087

Zynq UltraScale+ Devices Register Reference (UG1087)

Document ID
UG1087
Release Date
2024-03-13
Revision
1.10

DBALO (ETR) Register Description

Register NameDBALO
Offset Address0x0000000118
Absolute Address 0x00FE970118 (CORESIGHT_SOC_ETR)
Width32
TyperwNormal read/write
Reset Value0x00000000
DescriptionThis register, together with the DBAHI register, enables the TMC to locate the trace buffer in system memory. This register contains the 32 LSBits of the 40-bit address that is used to locate the trace buffer. Modifying this register other than when in Disabled state (TMCReady=1 and TraceCaptEn=0) results in Unpredictable behavior.If the ScatterGatherMode bit is 0 in the AXICTL register, 0x110, the content of this register is the base address of the trace buffer in system memory. If the ScatterGatherMode bit is 1 in the AXICTL register, 0x110, the content of this register is the address of first page table entry in the linked list.

DBALO (ETR) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
BUFADDRLO31:0rwNormal read/write0x0Holds the lower 32 bits of the 40-bit address used to locate the trace buffer in system memory